How C++23 changes the way we write code
summary
C++23 adds concrete tools that change code: deducing this replaces boilerplate CRTP and four const/ref overloads by letting member functions take the actual derived type (one implementation instead of four); std::expected returns value-or-error so happy paths stay allocation-free while preserving specific error info instead of optional or exceptions; std::mdspan gives non‑owning multi‑dimensional views with layout_right/layout_left and pluggable layouts/accessors (Hilbert mapping, atomic accessors); std::print provides safe, fast Unicode-capable formatting and a printline convenience that replaces awkward iostream idioms.
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chapters (6)
- 0:00Introduction
- 9:49Deducing this impact
- 22:05Expected error handling
- 34:23MD span for arrays
- 48:20Print and hello world
- 57:34Q&A
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